Bank Nifty was up 363.50 points or 2.89% at 12,947.10 at 13:15 hours. Fortune Brokers’ technical and derivatives head, Ashish Chaturmohta, said the index has broken out of a range of 12,300-12,750, resulting in the renewed optimism.
“There is a huge build-up of long positions today which is higher than what the positions were when the index was around the same levels,” said Chaturmohta.
The open interest - the number of outstanding positions- in Bank Nifty futures is aroughly 20 lakh units. When the Bank Nifty touched 12,780 in February, the open interest was about 11 lakh. Similarly, in December 2010, when the index touched its high of 13,267, the total open interest was 17 lakh.